44results about How to "Deep HOMO level" patented technology

The invention discloses a compound containing aza-spirofluorene and nitrogen six-membered heterocycle and application of the compound to an OLED (Organic Light Emitting Diode). The compound contains an aza-spirofluorene structure and an aza-six-membered heterocyclic structure; in addition, at least one N is arranged on the spirofluorene structure; and both two groups are strong electron groups, have deep HOMO energy level and high electron mobility, and are suitably used as a hole-blocking material or an electron transport material. A structure containing a hole group of the compound disclosed by the invention can balance electrons and holes of the material, so that the material can be used as a main body material of a partially-electronic luminescent layer; besides, the compound disclosed by the invention has higher group rigidity and has the characteristics of low possibilities of intermolecular crystallization and aggregation and high film-forming property; the compound serving as an organic electroluminescence functional layer material is applies to an OLED device; current efficiency, power efficiency and external quantum efficiency of the device are greatly improved; and besides, the service life of the device is obviously prolonged.

The invention discloses a compound containing aza-spirofluorene and nitrogen-containing hexa-heterocycle and application of the compound in an organic light emission diode device. The compound contains aza-spirofluorene and aza-hexatomic ring structures, and the spirofluorene structure is provided with two symmetrical Ns; the two radical groups are strong electron radical groups and have the deep HOMO energy level and the high electron mobility, and the compound is suitable for serving as a hole-blocking material or an electron transport material for application; the compound contains the structure of the hole radical group and an electron and a hole which can balance the material, and the material can serve as partial electron type luminous layer main material to use; in addition, the compound radical group is high in rigidity and has the advantages of being not likely to crystallize between molecules or aggregate and having the good film-forming property. After the compound serves as organic light emitting function layer material to be applied to the OLED device, the current efficiency, power efficiency and external quantum efficiency of the device are all greatly improved; meanwhile, the service life of the device is prolonged very obviously.

The invention discloses a S,S-dioxo-dibenzothiophene unit-containing electron donor polymer and a use thereof. The main chain of the S,S-dioxo-dibenzothiophene unit-containing electron donor polymer contains a S,S-dioxo-dibenzothiophene unit. Through Stille and Suzuki polymerization methods, a novel D-A structure conjugated polymer is constructed. The S,S-dioxo-dibenzothiophene unit has good flatness and high electronegativity. Through the S,S-dioxo-dibenzothiophene unit, the polymer has a deep HOMO energy level, strong intermolecular interaction, a high light-absorption coefficient, high mobility and high photoelectric response so that the related polymer has wide application prospects in solar cells or organic field effect transistors.

The invention discloses a compound containing anthrone and azacycle and an application of the compound to an OLED. The compound contains anthrone and azacycle structures; anthrone and azacycle are both strong electron groups, and have deep HOMO energy level and high electron mobility, so that the compound is suitable for being used as a hole blocking material or an electron transport material, andcan also be used as a luminescent layer host material; besides, the compound is high in rigidity and has the characteristics of being not prone to crystallization and aggregation among molecules andgood in film-forming property, and after the compound serves as an organic electroluminescence functional layer material to be applied to an OLED device, the current efficiency, the power efficiency and the external quantum efficiency of the device are greatly improved; and meanwhile, the service life of the device is obviously prolonged.

The present invention provides a nitrogen-containing heterocyclic compound and an organic electronic device including the same.

The invention discloses a compound with ketone as the core, a preparation method and application of the compound. The compound has small delta Est, reverse interstitial leaping of energy is facilitated, and the compound has a high triplet state energy level (T1) and appropriate HOMO and LUMO energy levels, and is suitable for being used as a main material of a luminescent layer of an organic electroluminescence device; and in addition, the compound has the strong group rigidity, and has the characteristics of difficult crystallization and difficult aggregation among molecules and good film formation. The compound is applied to an OLED device as an organic electroluminescence functional layer material, the current efficiency, the power efficiency and the external quantum efficiency of the device are all greatly improved, and meanwhile, the service life of the device is obviously prolonged.

The invention discloses a terpolymer containing a triazol isoindol-5,7(2H,6H)-dione unit and a preparation method and application thereof. The preparation method comprises the following step of enabling a monomer of an electron donor unit and a monomer containing the triazol isoindol-5,7(2H,6H)- dione unit to generate still coupling copolymerizing reaction, so as to obtain the ternary copolymer containing the triazol isoindoline-5,7(2H,6H)-diketone unit. The ternary copolymer containing the triazol isoindol-5,7(2H,6H)-dione unit has the advantages that the fluorescence property is realized; the absorbing range of sunlight is wider; the terpolymer can be well applied to the fields of preparation of light emitting layers of polymer light emitting diodes, polymer field effect transistors and activating layers of polymer solar batteries.

The present specification provides a copolymer and an organic solar cell including the same.

The invention discloses a p-type conjugated polymer containing 3,4-dicyanothiophene, and a preparation method and an application thereof. The method comprises the following steps: mixing a thiophene unit monomer containing 3,4-dicyanothiophene, a monomer containing a conjugated unit Ar1 and a monomer containing a conjugated unit Ar2, then performing polymerization reaction under catalysis of a catalyst, and purifying the obtained reaction product to obtain the p-type conjugated polymer containing 3,4-dicyanothiophene. The polymer provided by the invention is simple to synthesize, the introduction of a cyano group can regulate the energy level of the molecule, and the cyano group has a low molecular orbital energy level and a wide optical band gap, and can achieve good optical absorption complementation with an n-type organic semiconductor material; and compared with conjugated polymers free from the cyano substituent, the conjugated polymer containing 3,4-dicyanothiophene has the advantages of large dipole moment, high dielectric constant, facilitation of the reduction of exciton binding energy, promotion of the separation of electrons and holes, and realization of the preparationof high-performance organic solar cells.

To provide a novel chrysene compound and an organic light-emitting device having high emission efficiency and excellent driving durability, provided is a novel triaryl-substituted chrysene compound represented by the general formula [1]:wherein Ar1 to Ar3 each represent a substituent selected from the group consisting of a substituted or unsubstituted naphthyl group, a substituted or unsubstituted phenanthryl group, and a substituted or unsubstituted fluorenyl group.

The invention discloses a fluorine-containing phenanthrene quinoxaline and thiophene conjugated polymer, the energy gap and the HOMO energy level of the polymer are reduced simultaneously, and needs of polymer photovoltaic cell photoactivity layer electron donor materials is met. The conjugated polymer has the structural general formula shown in the description. The polymer disclosed by the invention has deeper HOMO energy level than a polymer D and can be as deep as -5.67 eV, and high open circuit voltage of more than 0.89 V can be obtained when the polymer is applied in photovoltaic cells.

A photoelectric conversion element according to an embodiment of the present disclosure includes a first electrode and a second electrode opposed to each other; and a photoelectric conversion layer provided between the first electrode and the second electrode, and including a first organic semiconductor material and a second semiconductor material that have mutually different mother skeletons, in which the first organic semiconductor material is fullerene or a fullerene derivative, and the second organic semiconductor material has a deeper HOMO level than the first organic semiconductor material.

The present specification provides a copolymer and an organic solar cell including the same.

The invention discloses a compound containing cyanobenzene or thiocyanobenzene, and applications in organic electroluminescent devices. According to the present invention, the compound comprises a cyanobenzene or thiocyanobenzene group, has deep HOMO energy level and high hole mobility, and can be used as a hole blocking material or electron transporting material; the compound has the structure containing the hole group so as to balance the electron and the hole of the material, such that the material can be used as the electron-biased light emitting layer host material; the compound has the group with strong rigidity, and further has characteristics of less intermolecular crystallization, less aggregation and good film forming property; and with the application of the compound as the organic electroluminescent function layer material in OLED devices, the current efficiency, the power efficiency and the external quantum efficiency of the device are greatly improved, and the service life of the device is significantly prolonged.

The invention discloses a conjugated polymer containing 1,2,3 triazol isobenzazole-5,7(2H,6H)-dione as well as a preparation method and an application of the conjugated polymer and belongs to the field of polymers applied to photoelectric materials and devices. The preparation method comprises the following steps: an electron donor unit D and a 2,6-R,R1-[1,2,3]triazol[4,5-f] isobenzazole-4,8-Ar1,Ar2-5,7(2H,6H)-dione monomer are subjected to still coupling copolymerization, and the conjugated polymer containing 1,2,3 triazol isobenzazole-5,7(2H,6H)-dione is obtained. The prepared conjugated polymer has fluorescence, has a wider absorption peak for sunlight and can be used for manufacturing active layers of a polymer light emitting diode device, a polymer field effect transistor and a polymer solar cell.

The invention discloses a compound with benzonitrile or thio-benzonitrile and application thereof in organic light-emitting devices. The compound is composed of a benzonitrile or thio-benzonitrile group, has deep HOMO (highest occupied molecular orbital) energy level and high electron migration rate, and is suitable for acting as a hole barrier material or an electron transport material. The holegroup structure contained in the compound can balance electrons and holes, so that the compound may act as a near-electron light-emitting layer main material; in addition, as the group of the compoundhas high rigidity, the compound features rarity of intermolecular crystallization or gathering, and good film-forming property. After the compound is applied as an organic light-emitting functional layer material to OLED devices, all the current efficiency, power efficiency and external quantum efficiency of the devices are greatly improved; the service lives of the devices are significantly extended.

The invention provides a benzo five-membered heterocyclic derivative and an organic electroluminescent device thereof, and relates to the technical field of organic photoelectric materials. The benzo five-membered heterocyclic derivative provided by the invention has relatively good electron mobility, can effectively promote transmission balance of holes and electrons, and meanwhile, the benzo five-membered heterocyclic derivative has relatively good hole blocking capability, can effectively block the holes in a light-emitting layer, and increases the recombination probability of the holes and the electrons. When the compound is applied to a hole blocking layer or an electron transport layer of an organic electroluminescent device, the luminous efficiency and the service life of the device can be effectively improved; besides, when the benzo five-membered heterocyclic derivative is applied to the organic electroluminescent device as a light extraction material, the total emission of an interface between an electrode film and a glass substrate and an interface between the glass substrate and air can be effectively solved, and the light extraction efficiency is improved, so that the luminous efficiency of the organic electroluminescent device is improved, and the service life of the organic electroluminescent device is prolonged.

The invention discloses a ketone-bearing compound and application thereof in organic light-emitting devices. The compound is composed of a ketone and a spiroanthracene-fluorene group, has deep HOMO (highest occupied molecular orbital) energy level and high electron migration rate, and is suitable for acting as a hole barrier material or an electron transport material. The hole group structure contained in the compound can balance electrons and holes, so that the compound may act as a near-electron light-emitting layer main material; in addition, as the group of the compound has high rigidity,the compound features rarity of intermolecular crystallization or gathering, and good film-forming property. After the compound is applied as an organic light-emitting functional layer material to OLED devices, all the current efficiency, power efficiency and external quantum efficiency of the devices are greatly improved; the service lives of the devices are significantly extended.

The invention discloses a conjugated polymer of fluorine-containing phenanthroquinoxaline and thiophene, which simultaneously reduces the energy gap and HOMO energy level of the polymer, and meets the requirement of electron donor materials for photoactive layers of polymer photovoltaic cells. The general structural formula of the present invention is as follows: the polymer disclosed in the present invention has a deeper HOMO energy level than polymer D, which can be as deep as -5.67eV, and can be used in photovoltaic cells to obtain a high open circuit voltage of >0.89V.

The invention belongs to the field of organic electroluminescent materials, and provides a benzoxazine compound, an organic electroluminescent device and an electronic device. The benzoxazine compoundhas a structure as shown in a chemical formula 1 which is described in the specification. In the chemical formula 1, Q1 and Q2 are respectively and independently selected from the group consisting ofa substituted or unsubstituted aryl group of C6-C30 and a substituted or unsubstituted heteroaryl group of C3-C30. When the compound provided by the invention is applied to an OLED device as a luminescent material, the current efficiency, the power efficiency and the external quantum efficiency of the device can be improved.

The present specification provides a copolymer, and an organic solar cell including one or more layers of organic material layers that include the copolymer.